You'll find posts tend to go un-noticed when very little information is given by the poster. First of all, we can assume windows. Can we assume XP? How about XP home, MCE, or Pro?
Error's you generate when you take this action. What action is it exactly. Rename programs? Probably not. Perhaps you mean rename folders, or shortcuts? Are there any events generated in event viewer. And so on and so forth. I can't speak for everyone but I generally don't like to ask 20 questions simply to come up with a response because there was inadequate data in the beginning to take a stab at it.
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